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Federal Supply Group (FSG) and Class (FSC) Online Inventory

For parts from Federal Supply Class (FSC) or Groups (FSG) like  and many others, look no further than NSN Sourcing. Owned and operated by ASAP Semiconductor, we are an all-inclusive purchasing platform for the aerospace, defense, civil aviation, electronics, and IT hardware markets. As such, we have FSC parts from a vast and diverse selection of FSGs and their corresponding FSC classes. As an AS9120B, ISO 9001:2015, and FAA 0056B accredited company, we can ensure the quality of each part we sell.

Through our ongoing relationships with major suppliers, we are able to leverage our purchasing power to secure lower costs and faster shipping times on all orders. we are committed to providing customers with solutions to product obsolescence, long lead times, and in-demand & hard to find items. To begin the purchasing process instantly, submit an RFQ today. Dedicated account managers are standing by and will reach out to you in 15 minutes or less.

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  • Guaranteed on-time delivery

    Confirmed purchase orders stay tracked through U.S. fulfillment, with procurement watching ship dates through delivery.

  • 5,100+ stocked manufacturers

    A stocked OEM network keeps alternatives visible when legacy NSNs, CAGE codes, or superseded part numbers need a fast cross-check.

  • Complete purchasing solutions

    One RFQ can combine hard-to-source lines, quote routing, buyer follow-up, and basket updates without forcing a checkout flow.

  • 15-minute quote response

    Requests route to the procurement desk around the clock, keeping urgent aviation and defense requirements inside the response window.

  • Customized & user-friendly

    Search by NSN, NIIN, CAGE, FSC, or part number, then move directly from catalog context into a quote-ready line item.